How do Fitbit trackers sync with iOS devices?

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The Fitbit app for iOS uses Bluetooth Low Energy technology to sync with your Fitbit tracker. To initiate a sync, just open the Fitbit app for iOS. If you're having difficulty syncing, see My tracker is not syncing with the Fitbit app for iOS.

You must have Bluetooth enabled on your iOS device to sync your tracker with the Fitbit app for iOS. If your iOS device is in airplane mode, it will not sync with your tracker until you turn off airplane mode, or until you manually turn on Bluetooth on your iOS device.

Is my iOS device supported?

The Fitbit app for iOS supports syncing with select iOS devices. For the latest list of supported devices, see Fitbit frequently adds support for new devices, so if yours isn't listed check back soon.

How often will my tracker sync?

Your tracker syncs with the Fitbit app for iOS every time you open the app.

By default, the app syncs periodically with your tracker even when the Fitbit app is in the background. Known as “all-day sync,” some customers find that this feature causes the battery on their iOS device or their tracker to drain more quickly that normal. If this happens to you and you want to disable all-day sync, just tap the Account tab, and then tap your tracker and turn off all-day sync.

How do I force my track to sync?

If you've had the app open for a while and want to initiate a new sync, tap the Account tab, and then tap your tracker to see an option for syncing immediately.

Can I track my data in real time?

You can track your steps, calories, distance, and heart rate (if applicable) in real time with the Fitbit app for iOS. Make sure the word "Connected" appears below your tracker name at the top of the dashboard (When you first open the app, it may take a few moments to connect.). Once your tracker is connected, take a few steps and watch your step count increase to verify that real-time tracking is enabled.

Real-time sync is supported for all trackers except Zip and Ultra.

Real-time sync requires that you keep the screen of your iOS device turned on and the Fitbit app in focus at all times. If you close the Fitbit app or put your device to sleep, you'll need to open the app again to track real-time data.  
Last updated: August 4, 2015
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